Perseverance’s Cheyava Falls Rock in Jezero Crater Shows Potential Biosignature, Awaiting Earth-Based Confirmation

To the point

Perseverance collected a Cheyava Falls rock that may hint at ancient microbes, a view Joel Hurowitz supports, but only Earth-returned samples can confirm a biosignature, a milestone Nicky Fox calls the closest yet to ancient Martian life.

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NASA says rock sample from Mars has potential biosignature of life
nbcnews.com

NASA says rock sample from Mars has potential biosignature of life

The potential “biosignature” isn’t direct evidence of life itself, but rather a leftover sign that textural features on the rock may have biological origins.